Lock.



www' f J. PALUH.

LOCK. APPLICATION FILED SEPT. 10, 1912.

1,057,874. Patented Apr. 1,1913.

2 SHEETS-SHEET 1. Tlcl. l.

MMM

J,l PALUH.

V LoGK.

APPLICATION FAILED SEPT. l0, 1912.

1,057,874. t l Patented Aprnl, 1913.

2 SHEETS-SHEET 2.

mgl

Wmv/angina l ml mw ,fff llllunmlmmagam sv v wif l, :I l

"mum f WMM/mona o UNITED STATES PATENT oEEioE.

:rosEPH PALUH, or GARFIELD, NEW JERSEY.

LOCK.

To all whom #may concern Be it known that I, JOSEPH PALUH, a citizen oflthe' United States, residing at Garfield, in the count-y of Bergen andState' -will in part be hereinafter set forth, and in part becomeapparent, the invention -comprises 'certain novel constructions,combinationsandarrangements of parts as herein specified and claimed.A

Inthe accompanying drawings: Figure 1 is a section ta i I en on theplane indicated by line 1-'1 ofl Fig. 3, part-s beneath the line .of thesection being indicated in plan. Fig. 2 is a similar section on line 2-2of Fig. 3. Fig. .3 isa vertical'section taken on the plane indicated byline 3--3 of Fig. 1. Fig. 4 is a horizontal section taken on the planeindicated by line 4 4 of Fig. 1. Fig.- 5 is a longitudinal sectionthrough a key 'forming a part of the present invention. Fig. 6 is atransverse section*therethrough taken on the plane indicatedb v line 6 6of 5. Fig. 7 is a perspective view of a supplement-al key. v

/ Referring to the accompanying drawings i by numerals, 1 indicates ahousing or casing'of a lock which. may jbe either of the rim or mort-isctype. Reciprocally mounted in casing 1 is the latch bolt 2 which has itsforward portion projected through an aperture in the outer edge wall ofthe casing 1, and has its rear portion guided in a bracket 3, the, rearend of thel bolt 2 being pressed by a spring 4 in the direction tendingto maintain the bolt in its outer or forward position. Along theintermediateportion of lthe bolt 2, the same is formed into a rack 5which meshes with a gear 6 journaled on a shaft 7 which latter is fixedto a casing 1. A pawl 8 is pivo-ted to a casing 1 at one side of gear 6and is'formed with a shoulder 8 adapted to engage teeth of gear 6 t-olock the gear against rotation when t-he pawl is pressed toward the gearwhereby the pressing of pawl'lS into locking engagement withSpecification of Letters Patent. I

Application filed September 10, 19.12.i Serial No. 719,540.

gear 6 will lock the bolt 2 against reciprocationby virtue of the factthat the boltv may reciprocate only When'the gear 6 is freeto rotate inthe course of meshing with the rack 5.

The casing 1 consists of the usual xed back plate 9carrying thesurrounding edge plates and the usual detachable front plate 10. Theplates 9 and 10 are apertured, as at ,11, 11, for ,the accommodation ofthe knob shaft 12 to theends of which are con'- nected the knobs 13 and14. `lSurrounding the shaft 12, just inside of plate 10 is a sleeve 15having tangential arms 16 and 17 extendingat oppositel sidesofthe endportion of pawl 8, so as to enable movement of the pawl to and from thelocking relationwith gear 6 when the sleeve 15 is rotated for swingingarms 16 and 17 upwardly' and downwardly respectively., The sleeve 15 isshouldered circumferentially and the annular shoulder is disposed tobear against the inner face of plate 10. the outstanding portion of thesleeve extending into aperture 11 of plate 10 and constituting a clutchYmember by virtue of being provided with Patented Apr. 1,1913.

clutch member receiving'recesses 1S. Knob 13 is formed with an inwardlyextending sleeve surrounding the shaft 12 and provided at its inner endwith inwardly extending clutch teeth 19 adapted at times to engagerecesses 18 for actuating sleeve 15.' A spring 2O is disposed within thesleeve of the knob 13 in position to engage the end ot' shaft 12- and aportion of the knob for pressingl the engaged parts in oppositedirections and thereby pressing the knob longitudinally away from theshaft. To accommodate relative longitudinal movement of the knob and itssleeve with respect to the shaft,

a set screw 21 is threaded through thc sleeve int-o engagement with aslot or elongated.l recess 22 wherebyv the parts may have relativelongitudinal movement while the sha-ftwill rotate whenever the knob isturned.

Thus the knob is normally held with its elutchteeth 19 .out ofengagement'with the recess 1S.

A sleeve 23 surrounds the shaft 12 and exl tends through plate 9, and'at its inner end carries a pinion; 221 which is disposed to mesh witha'rack 25. formed of a portion of "bolt, 2, whereby rotation of sleeve28 is adapted to reciprocate bolt 2, and the bolt in turn will be held`against reciprocation 60 to 'release'the pawl 8, thebo'lt 2 is free to`by 'the pinion24lfwhen thelatter vis held against rotation. Extendinginwardly from the pinion` 2d arefcluteh teeth 26 adapted,

at times, to engage clutchrecesses27 formed in the sleevell.' theparts'being normally' spaced aparty and lheld spaced .apart by 'a at'oneend pressing yithe"exposed faceA of.' platej 9' .and the other, endpressing the 1 laterally extending studs' for, pro jections .29 formed,[preferably by the :,@nrlportions of.v a pinv passedfthrouglr the-`sleeve and throug'hthe shaft 12. lhus'thel shaft 'isheld Vagainstindependent rotation yrelative to sleeve X23, and 'is alsof/heldagainstj longitudinal reciprocation i1 1depve nd+vv '25' A .of theYbolt. '23 beingcutaway to accomIno-r' yentf'thereof' asthe "spring 28prevents the sleeve from having -m'ore'jthan limited move` h'nientin oned1rect1on,jand pinion post,

tively stopsthefsleeve against longitudinal movement i'ntheotherdirection.' .i The'pinion 24 and-rack 25 are 'Lof a thicknessconsider-- Pably'lessthll the thickness of the bolt 2`so th'attheclutch'teeth'26 are normally spaced from the adjacent en d 'ot sleeve15, material.

Vdate' free rotaryinovement of the pinion 24 'when lthe sameis moved.inwardly until the 3 0 Y' ,out of Avmeslnwith rack 25. vKnob 14 isclutch teeth26 engage recesses 27, the pinion vpassing in such movement4beyond` and formedwith a sleeve similar .in construction and arrangementto `that of knob 13 hav1ng p the inwardly 'extending clutch teeth r,30adapted toat ,times engage clutchrecesses 31 :insleeve 23. The shaftv12extends into the sleeve of knob 14, and therein is formed with anannular elongated reduced portion 14-leaving a longitudinal and annularspace/ 14 into whichextends a' boltlor pinl 32 'which extends throughand engages the sleeve of knob 14the Apin 32 being of suffif ciently'lessVl cross-sectional area than 'the' length of space l14" 'to' permitthe requisite longitudinal, 4movement-of the` knob 14.

v Fixed to and-'extending' inwardly from'the inner face of plate isastop 33 interposed in the path of. swing of the arm 17 so as to limitthe extent of possible rotary movement of sleeve 15, a plate spring 34being also fixed to the inner face of plate 10 and curved y 4to have itsflatfface pressed against the"at 'face of arm 17 end thereby damp themovement 'of the arm and connected parts for preventing 'rattling oraccidental displacement thereof A pendant sto 35 extendsv fromtheinnerface of plate 10 into the path of swing of pawl 8' and serves I4to limitthe extent of movement thereof.Y

Y Inoperation,l when the sleeve 15 is .turned bereciprocated either by adirect rotation of knob 13 or by pressing the' knob 14: inwardly untilclutch 'members 30v enga eclutch re- Gosses 31 .andithen rotatingkno114. -When vit is vdesired to render diilieult the manipula tion of the,parts pawl-S' is moved to the locking position, soasv to temporarilylock latch bolt 2 against reciprocation until p'awl is moved out, of itsengagement. To accomplish this lbythe inner knob, or knob 13, itisvonly, necessary'to presthesaine inwardly 'until thefteeth26engagefthe recess 27,. and'then rotate the knob 'for' swinging the arms16v -and- `17=` downwardly, during vwhich rotary. movement sleeve'23will bev rotated by v'vi'rtu'e of the rotation of shaft which' resultsin Pa simultaneous 'rotation of; thepinion. 2 4', and thus it will beseen that when the 13 is thrust inwardly, andk 12 audits connectionwithihe sleeve 23,

rotatedj contra-clockwise` as viewed `from' the inside the releasebfpawljS l'and .the inward thrustof'b'olt .2will beaccQmplshed "sim'ull.

ta'neous'ly; --Th'efwithdrawalfof bolt 2 by. the us'eotthe 'exteriorknohlfi is, however, rendered more diiicult because of the variousAIln'anipulation's of which .the lknob is capable andfthrough 'someofwhich 'it must be carriedfbeforethc desired'jend is. attained. IIf `99the operatr'merelyjrotates. the knob, no re'- s'ultffollows,"andfif,hefthruststhe knob inwardly yuntil the teeth'30 engagewith there-4 by 1 virtue of the I,engagement of pinion' y24 with rack Iand/theengfngement of rack A5' with v.the pinion 6, which latter piniony is"being held against rotation by the pawl` 8.

The next `possible operation is the further thrust of the. knob 14inwardly,whereupon' the pinion 24will`b'e moved past the rack Ce'sses -3'1 ,fand then undertakesto 'rotate the. w i flinob,' .he willv finditheld against-movement 25l and theclutch teeth 2 61wi1l be brought vinto,engagement with Yrecesses 27 If the operatorunderstandslthe-construction of the .parts, he will know-that wheneverthey aslsume-thisposition, it is only necessary to.

rotate the knob to releasethelockfor latch 4bolt 2, but tol oneunfamiliar-with the lock,

rotation of the 'knob yatthispointiwill apparently afford, no results as"the operator must, before 'eiectingfmovementof the boltr 2, permlt theknob 14 to return outwardly a distance suicient toenable the gear 24to-l mesh with rack 25but must not permit the rod to `x'nove outwardlysuiiiciently vto allow the teethBQto escape from recesses 31, for if thelatter shouldfocciir,f,-rotation offfthe vknob will effect no results,To oneex erin enced withthe lock, the kretention o the teeth 30. in engaement'vwithrec'esses 31, and

rotation ofl the" ob withthe parts in thisposition' will; efect thedesired inward thrust fica mediate cam portion 44, and a preferablyxying 1 and retaining the loop 47 under spring tension in engagement withthe bolt 41. The spring 45 also extends beyond the loop 47 and isinclosed by the bifurcated end of a yoke 48 which spans the bolt 41 andhas its upper end port-ion apertured to receive a pin l 49 carried bypawl 50, the pawl being pivotally connected to the plate 9 as at 51. The

formed in the rear edge p pin-and aperture connection between yoke 48and pawl 50 affords a pivotal engagement subjecting the pawl to thespring pressure of spring 45 which being exerted in an upward directionon yoke 48 presses the forward end of the pawl downwardly, the yokeengaging the pawl at a point in the rear of the pivot. The bolt 41 isformed with notches '52. adapted to receive the pawl 50 at therespective termini of longitudinal movement of bolt 41 whereby the boltis designed to be retained in either of its projected or retractedpositions until forcibly shifted, the pawl acting on the upward portionof the bolt, and the spring on the lower portion thereof to this end.Bolt 41 is also formed with a. series of notches 53 for receiving theactuating key bit which, during rotation of the key is adapted to engageany one of the recesses and project or retract bolt 41.

As a precaution against employment of skeleton or other spurious keys, Iprovide a special ke v for use with the`piesent improved lockwhich-avoidsthe necessity for forming a bit accommodating notch as apart of the keyhole, the key hole in the present lock being formedcircular as clearly seen at 55, a hole being formed in each of plates 9and 10, and the two holes being disposed in alinenient. vAs a furtherguard against introduction of a key by an unauthorized person I providea tab 56 pivoted to the inner face of plate 10 ina position to swing toand from a position extending aercss the keyhole 55. F or facilitatingthe operation of the tab 56` the material constituting 'the saineextends beyond the pivot and terminates 1n a bifurcated end 57 which isadapted in operation to be engaged by a supplemental key 58 consistingof a handle 5S and a shank 58,fthe latter being adapted to be directedthrough a key hole 59 ate of the housing 1 in position to enable theshank 58 to be thrust into the housing or casing 1 and into the spacebetween the arms or bifurcations 57.. A slight lateral movement of theshank .58 after having its inner end positioned in saidbifurcation willserve to throw the tab 56A across the keyhole or to move it away fromthe keyhole as desired. The keyhole 59 is preferablydisposed slightly atone side ofthe lineof bolt 41 so as to be in line with, the openingbetween the-yoke 48 and thebolt 41 so that the shank 58T may be extendedthrough the keyhole 59 longitudinally of the bolt 41, and one face ofshank 58 is tending lug60 adapted at times to enter a recess 61, in bolt41. Thus the shank 58" may be thrust .through keyhole 59 and along' bolt41 until lug 60 drops into recess 6l, and the bolt 41 may then be drawnor thrust longitudinallyby a longitudinal shiftingof the key 58.Obviously the keyhole 59 and key 58 and coperativeyparts will be usefulonly in rim locks or locks disposed to have their rear edge accessible.Y j To operate the present .improved lock whose casing is provided witha circular keyhole, I employ a key of particular con-.

struction, especially. designed for use .with

such keyhole, said key consisting of a shankr comprising a hollowcylinder 62 liaiving a lateral aperture 63 vadjacent its inner end andhaving an annular flange or shoulder64 adjacentand outside of theaperture v65%. The

substantiallyv outer portion of the cylinder or sleeve 62 is slotted asat 65 and the outer end of the cylinder extends int-o a tubular plungerhead 66. Fixed to the said head is a shaft or rod 67 which is-connectedto the head at the outer end thereof. and extends thence inwardlyv`within the sleeve 62. To the inner end of the rod 67 ispivoted a link 68which carries at its outer endapivotally connected said aperture beingsuiiiciently elongated for accomniodatingv lateral swinging of thelinks, so that the links may be moved to a position projecting laterallyfrom the sleeve and.l

:loo

'link69, the two links being .thus free to be i directed outwardlylthrough the aperture 63 i'io forming a key bit from a position lying 4within and longitudinally vof the sleeve. The sleeve62 has its inner endclosed, that isto say. the cylinder constituting sleeve 62 is solid fromthe inner end of the vaperture 63,

so that in operation when t-heplunger head l 66 is moved inwardly andthus moves the plunger rod 67 inwardly, ,the links 69 and 68 will comesuccessively into .contact with the slid'wall at the innerv end of thesleeve-and will be caused to be turned outwardly therev by, the free endof link 69 beingbeveled as at 69 and the endof link 68 to whichlink 69is pivoted being correspondingly beveled or -rounded off as' at 68 whichrounded surfaces effect'the camining of the link to the lateral position wheny the same are projected longitudinally against the solidWall at the .50650, as j-uststat'e 651 ae-knob shaft attending throughterminus of. tlie sleeve., In drawing the links l68 and 69 from theposition forming a bit,

l luo or pin 70 extends outwardly -from the l@ plmgershaft 67 throughslot 65 for .guiding said plungershaft in its-reciprocal'move ment andpreventing rotary movementA thereofindependently of'fthe cylinder orsleeve 62. lIn operation, the'links 68 and 69 belingwithinjthecylinder-162the inner' end j of the cvlinder 'is extended through one ofVthe apertures and is passed inwardly until the flange or shoulder 64"comes. in ccn tactivvith the respective plate 9er 10, whereupon furtherinward movement of the sleeve is pr event ed,'and the plungenvvill thenmove inwardly' with the further inward movement` of the 'plungerheachwith the resultant projection ofr the link s to form a key bit whichwill extendintoone of the notches 52l and thus enable'projection orretraction of the` Obviously While the bit formed 'oflinks 68 and69 is'illustrated as havingjbut `a sinv 'byvariation in the Width of the linbifurcation thereof and` otherwise notching and shaping the' same,alv'vays conning the ormations to such, degree as'enables the pro-v]ection andA retractionv of the links relative to the sleeve.

It will be observed that the free end of the spring While eiiecting'theaction of yoke 48 and pawl 50 as stated, will in a pavvl 50, for when'the 'freeend of the pawl strikes the lbase of the respective notch 52Athe-tree end of the spring 45 Will be prevented from any furtherapproach toward \hejbolt.41. Thus as .the loop 4 7 is seating itself ineither one of the recesses 43 the inward travel, of the ,link will becushioned and limited by'the'control of` the freeend of thespringth'roigh the influence of the pavvl Thus the loop. 57 cannot takeits 'seat with" a v snap or sudden move,` Jment but the final seating-ofthe loop will be cushioned.

vHaving thus described the invention, what 5 5 is claimed is:

1. In a-lock, the combination with a casfing, of a latch bolt recirocally mounted vtherein and having a rac la pinion 'meshlngswith saidrack, a pawl pivoted to swine,r 60 to and from a position contiguous tosaid pinion and having a shoulder' adapted to engage the teethfof thepinion for locking the pinion against movement;` and thereby lockingthelatcihbolt against reciprocation,

t e casing,

:sleeve a distance suiiicient to cause the pin.- -ionto leave its meshvWith thc'rack.- f

glefvvard,v additional vvards lmay be rovided -sense be controlledby theposition ofthev a sleeve journaled on the knob sha-it, projectionsvextending Jfrom the sleeve in position for engaging oppositesides ofthepaxvl andadapted to swing the pawl to'and from a locking positionrelative tothe pinion when the sleeve is actuated, means for ac-'tuating the* sleeve, and means coperating therewith lfor reciprocatingthe latch bolt. I

2. In aA lock, the combination with a cas# ing, of .a latch boltreciprocal ly mounted therein andfhaving agrack, a pinion-'meshing Ywithsaid rack,` a knob shaft connected with the pinion and adapted to'rotatethe same forfr'eciprocating the latch b olt, means for-.

locking the latch bolt against 'reciprocation, 'asleeve journaled onItheknob shaft `and vspaced fromthe pinion, means 'carried by,

the sleeve Yforactuating thelatch bolt, locking means for effectingrelease thereof, said pinion beingmovably mounted and adapted` to moveAtoward and away from `the sleeve, anda clutch connection for the pinionsleeve adapted to assume effective clutch relation when the'pinion hasbeen shifted'toivard the l3. In a lock, the combination with a casing,ot a latch bolt reciprocally mounted therein, a catch adaptedtodock thelatch' bolt again-st reciprocation, means for 'releasing the catch, asleeve journaled in the 'cas ceA ing, a pinion carried by the sleeve", arack on the latch bolt. meshingwith' the pinion, a spring pressing thepinion to a position meshing with the rack, and means for--sliifting thesleeve andpinion Jfor moving the pinion out of mesh `With the rack andinposition for actuating lthe catch yreleasing E: Y

means. 4. In' a lock, vthe combination with a cas ing, of a latch boltreciprocally mounted thereinand having a rack, a pinion meshing with therack and shiftable bodily to and 5. In a lock, the l:ombination with acasfrom a-pos'ition in engagementvvith the rack,

ing, of a latch bolt reciprocally mounted therein. means for'reciprocating the bolt, means for locking the bolt againstreciprocation,means :tor releasing the lock, knobs atopposite sides ofthe casingl mounted to rotate and to shift toward and from the casing,

andmeans connected withfeach of the knobs ing ratchet notches at oneedge and spaced recesses at' the opposite edge, a spring fixed withinthe casing and bent to Contact With said bolt under spring pressure,said spring 'being .formed Withian open loop adapted to extend into therespective recesses according to the4 positin of the bolt, a pav'vlpivotall'y mounted in the casing and adapted to engage the ratchetnotches lof the bolt, and a' yoke engaging a free portion of the springvand extending acrossl the bolt and pivotally engaging the paWl in theA'rear of its pivot fory maintaining -the same in contact with vthe-respective ratchet notches under springA pressure vvhile the loop ofthe spring is 'with- -in one of the recesses.

. 7, In a lock, the combination with a cas- 'i ng, of a lslidablymounted bolt therein havi' lng ratchet notches at 'one edge and spacedrecesses at the opposite edge, a spring fixed within the casing and bentto contact with said bolt under spring pressure, said spring n K beingformed with an open loop adapted to extend into the respective recessesaccording .to the position of the' bolt, a pawl pivotally the casingbeing formed with'a keyhole sub- 40` stantially in line With the bolt,,the bolt be` ing formed with a recess in its side face, and a keyhaving a; shank adapted to-be passed through the keyhole and beingformed with a lug adaptedl to b e seated'in .the recess in A45 l theside face of .the-bolt' to enable"manual longitudinal thrust; of thebolt by a similar movement ofthe key. y

In testimony whereof I aiflx mysignature in presencev of two Witnesses.

JOSEPH PALUH.

Witnesses:

H. I-I. RUST, DOROTHY Snnrl.v

v(lolitas of thisv patent may be obtained for ve cents each, byaddressing the Commissioner of Patents, A Washington, D. C.

